Apparatus for aquatic instruction and amusement.



G. F. JAGOBSEN. APPARATUS FOR AQUATIC INSTRUCTION AND AMUSEMENT.

APPLICATION FILED NOV. 13, I912.

Patented May 5, 1914.

3 SHEETSSHEET l.

WITNESSES ATTORNEYS COLUMBIA PLANOGRAPH CO.,WASHINGTON. D. c.

C. F. JAGOBSEN. APPARATUS FOR AQUATIC INSTRUCTION ANDYAMUSEMENT.

1,095,872. APPLICATION FILED NOV. 13, 1912. Patented May 5 3 SHEETS-SHEET 2.

WITNESSES INVENTOR fiaxfid/fhahlw \OLUMBIA PLANOGRAPH C0,.WAsH1NGToN, D. o

G. F. JAGOBSEN. APPARATUS FOR AQUATIC INSTRUCTION AND AMUSEMENT.

1,095,872. APPLICATION FILED NOV. 13, 1912. Patented May 5,

IN J60 ATTORNEYS 3SHEBTS-SHEET 3.

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CHARLES F. JACOBSEN, OF BROOKLYN, NEW YORK.

APPARATUS FOR AQUATIC INSTRUCTION AND AMUSEMENT.

To all whom it may concern Be it known that I, CHARLES F. Jaconsnn, a subject of the King of Denmark, and a resident of Brooklyn, in the county of Kings and State of New York, have invented an Apparatus for Aquatic Instruction and Amusement, of which the following is a specification. v

The object of my invention is to provide a novel apparatus for instruction in the art of swimming.

The invention is embodied in a large swimming pool or water-holder having a circular concentric platform adapted to travel on the sidewall or rim of the tank, the same being operated by a suitable motor and also provided with means for supporting persons in the water, the element of danger being entirely eliminated.

The details of construction, arrangement, and operation of the apparatus are as hereinafter described and illustrated in the accompanying drawings, in which Figure 1 is a perspective view of the apparatus as in use. Fig. 2 is a plan view of the same. Fig. 3 is a plan view of the pool with the circular traveling platform removed. Fig. & is a central vertical section of the apparatus. Fig. 5 is a plan view of a portion of the traveling platform. Fig. 6 is a vertical section of the platform and the rim of the tank or pool on which it travels. Fig. 7 is a plan view of a portion of the pool rim. Fig. 8 is a detail section illustrating the arrangement of guard wheels for the traveling platform. Fig. 9 is a vertical see tion illustrating a modification. Fig. 10 is a sectional view showing a modification.

The circular body 1 of the swimming pool has a vertical wall 2 upon which the concen tric platform 8 is adapted to travel. As shown in Fig. 6, the platform is supported upon wheels 4. which are mounted upon axles having their bearings on a slotted circular plate 5 that rests on the fiat top portion of the pool rim, or may be mounted on rails same as street cars. In describing a circle, the outer wheel travels faster than the inner one, and in order to relieve friction, it is necessary that one or both of these wheels shall be mounted loosely on the axle so as to turn independently. The wheels are spaced equidistantly around the pool.

For driving the platform 3, any suitable motor may be employed and suitably connected with the platform. In Fig. 6, I show Specification of Letters Yatent.

Application filed November 13, 1912.

Patented May 5, 1914.

Serial No. 731,155.

a vertical shaft 6 which in practice is driven by a motor and having a pinion 7 that meshes with a rack 8 pendent from the plat form. V

For the purpose of holding the platform in due position, that is to say, concentric with the rim of the tank while being operated, I provide guard wheels 9 whichare located equidistantly, as indicated in Fig. 2, and, as shown in Fig. 8, such wheels are keyed on vertical axles having bearings in the plate 5. The wheels may be arranged to run on the rack 8, like the motor pinion 7 The platform 3 is provided with a series of posts 11 and supporting brackets 12 from which chains or ropes 13 are pendent, the lower-ends ofthe latter being provided with belts or equivalent means 11- for attachment to tpe bodies of children or adults using the p00 p The platform may be driven around the pool at greater or less speed at the will of the operator, and the persons to which the chains or ropes are attached may exercise themselves in swimming. It is apparent that a comparatively large number of persons may thus be instructed with absolute safety all at the same time and thus learn to swim quickly.

The vertical wall or rim 2 of the pool may be provided on the inner side with a projecting ledge 15 which is adapted to serve as a foot-support for persons in entering or leaving the tank.

In Fig. 9, I show a modification in which the traveling platform .8 has an inverted railroad rail for a base, and this rests on flanged rollers at which are mounted on axles fixed in parallel flanged supports.

In Fig. 10Sheet 1I show a truck or wheeled platform adapted to run on a wall serving as a division between a large pool and a surrounding annular pool, or canal, the said wall having openings for passage of water so that the level of water is always the same in both pools. This platform has supports for persons on each side, so that double the number of swimmers may be acommodated at one time.

It will be understood that antifriction rollers will be employed wherever their use may be considered necessary or advantageous.

As shown in several figures, the central portion of the pool, where the water is deep, is provided with a tower 17 having a central vertical underground passage in which a spiral stairway 18 is arranged. Guards 19 are secured to the top of the tower and a ladder 20 leads down into the water. The tower is thus adapted for use by experienced persons who may desire to dive, plunge, or jump from the tower. In practice, lateral passages 21 are provided for convenience of access to the spiral stairway.

hat I claim is 1. An aquatic apparatus for the purpose specified, comprising a swimming pool having a circular rim, an annular platform adapted to travel around the said pool, wheels supporting the platform, gearing connected with the platform for driving it, and means for holding and guiding the platform in concentric position, as described.

2. The improved aquatic apparatus, com prising a circular swimming pool, a circular platform arranged concentrically with the same, a series of rollers arranged on the edge of the pool and serving as supports for the platform, the latter provided with a pendent circular rack and a driving gear meshing therewith, and guide wheels located at intervals around the tank and bearing against the edge of the platform for holding it in due concentric position, as described.

3. An aquatic apparatus for the purpose specified, comprising a swimming pool, a platform adapted to travel at the edge of the same and provided with a series of brackets and a series of suspended attachments for the persons of swimmers, as described.

4. An aquatic apparatus for the purpose specified, comprising a circular swimming pool, a surrounding wall having a flat top, a device or element adapted to travel on the wall and provided with means for attachment to persons in the pool, as described.

5. An aquatic apparatus comprising a circular pool, a surrounding wall having a fiat top and an annular pool or canal surrounding the said wall, the latter having lateral passages below the normal water line, whereby the water remains at the same level in both pools, a truck or wheeled platform adapted to travel on the wall and having devices on both sides for attachment to and support of persons in both pools, as described.

CHARLES F. JACOBSEN.

Witnesses SoLoN G. KEMON, Amos XV. HART.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

